Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed in 2019, with 30,927 patents from 15,298 inventors. Leading employers of inventors based in Tokyo, JP include Mitsubishi Electric, Hitachi, Allied Telesis Holdings K.K..

Showing 11,751–11,800 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Keita Hamano Mitsubishi Electric 1
#6064 Tomoto Washio Hitachi 1
#6064 Shunichi Tsunoda Allied Telesis Holdings K.K. 1
#6064 Kazuyoshi Hayase Rakuten Group 1
#6064 Takayuki Usami Sony 1
#6064 Tsyoshi Kashima Nokia 1
#6064 Kazuhiko Osoda Astellas Pharma 1
#6064 Daisuke Tanabe Astellas Pharma 1
#6064 Takumi Taguchi Subaru 1
#6064 Naoshi Kawamata Dai Nippon Printing Co. 1
#6064 Shoutarou Terane Nikon 1
#6064 Hazuki Uchida Jo Cosmetics Co. 1
#6064 Hironobu SAKATA Hitachi 1
#6064 Hideo Ohata Hitachi 1
#6064 Hironobu Ishiwatari 3M 1
#6064 Mariko Sato Fuji Electric Co. 1
#6064 Yuusuke Ukai Konica Minolta 1
#6064 Naofumi Nagai Japan Matex Co. 1
#6064 Tomeyoshi Ohori Asahi Glass Co. 1
#6064 Kazuya Shimakura Hirose Electric Co. 1
#6064 Koichi Shudo Unknown 1
#6064 Mayumi Kamiya Sony 1
#6064 Masaru Fujieda Oki Electric Industry Co. 1
#6064 Kazuo Aita Seiko Instruments 1
#6064 Daichi Terada Saiden Chemical Industry Co. 1
#6064 Yoshinori Onuma Nabtesco 1
#6064 Takuya Shirata Nabtesco 1
#6064 Yoichi Taira IBM 1
#6064 Hayato HOSHIHARA Hitachi 1
#6064 Akiya Oohira Lixil 1
#6064 Tsubasa Asaka Tachikawa 1
#6064 Naoki Yutani Mitsubishi Electric 1
#6064 Akiyoshi Ishibashi Riken 1
#6064 Ippei Daisaku 1
#6064 Kenji WASHIO Oval 1
#6064 Rikiya Takahashi IBM 1
#6064 Yoshimine Tanabu Oval 1
#6064 Takashi Hozumi Ebara 1
#6064 Fumiya Taguchi Nikon 1
#6064 Yoshihiko Okayama Toshiba Kikai 1
#6064 Mai Yatsuka Casio Computer Co. 1
#6064 Tomohiro Aikawa Hitachi Kokusai Electric 1
#6064 Yoshio Kubo Mitsubishi Electric 1
#6064 Motoki Koroki Senju Metal Industry Co. 1
#6064 Nobuyuki Ishizaku Sony 1
#6064 Takefumi Tamura Canon 1
#6064 Seika Minakoshi Dai Nippon Printing Co. 1
#6064 Hidetoshi Nishigori Canon 1
#6064 Takayuki AMATSU Kabushiki Kaisha Toshiba 1
#6064 Ryuichiro Kai Ns Solutions 1